B6 Help Needed! EDS light comes on on highway, dont know why!
just got a 2004 A4. for some reason the cruise control wont turn on. also, when im on the highway, the EDS light comes on after about 10 min of driving. any ideas? might the problem be linked?
did a scan with vagcom, this is the only noteworthy faultcode that came up 1 Fault Found: 16955 - Brake Switch (F): Implausible Signal P0571 - 008 - Implausible Signal - Intermittent i also noticed today that the brake lights stay solid all the time.... cant be safe for driving if the person behind me always thinks im braking...... |
Re: B6 Help Needed!
any ideas?
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Re: B6 Help Needed!
need to get this figured out!
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Re: B6 Help Needed!
Obvious question: have you pulled the cruise control stalk one click towards you before trying to set the cruising speed?
You car's an '04, so it's still under warranty. Why not take'er to your preferred dealership to have this looked at? |
Re: B6 Help Needed! EDS light comes on on highway, dont know why!
Originally Posted by P-Lo
(Post 66196)
just got a 2004 A4. for some reason the cruise control wont turn on. also, when im on the highway, the EDS light comes on after about 10 min of driving. any ideas? might the problem be linked?
did a scan with vagcom, this is the only noteworthy faultcode that came up 1 Fault Found: 16955 - Brake Switch (F): Implausible Signal P0571 - 008 - Implausible Signal - Intermittent |
Re: B6 Help Needed! EDS light comes on on highway, dont know why!
Originally Posted by 1move
(Post 66580)
I will look at it tonight, did you try clearing the fault codes with the vag-com? have you checked all your fusing?
my car just came out of warranty in march :( i will check the fuse after work today. cross my fingers its something that simple.... |
Re: B6 Help Needed!
Ill check the wiring diagrams once i get home :D and check the fault code I will let you know tonight
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Re: B6 Help Needed!
awesome, thanks for the help!
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Re: B6 Help Needed! EDS light comes on on highway, dont know why!
Check switch
Remove driver's storage compartment: Disconnect connector from Brake Light Switch -F- / Brake Pedal Switch -F47- -2-. Connect multimeter between terminals 1 and 4 to measure resistance. Specified value: ∞ Ω (no continuity) Press brake pedal. Specified value: approx. 0 Ω Connect multimeter between terminals 2 and 3 to measure resistance. Specified value: approx. 0 Ω Press brake pedal. Specified value: ∞ Ω (no continuity) If the specified values are not obtained: Replace Brake Light Switch -F- / Brake Pedal Switch -F47-. => Repair Manual, Brake System; Repair Group 46 If specifications are obtained: Check power supply Connect voltage tester V.A.G 1527 B as follows: Connector terminal Measure to 1 Vehicle body ground (GND) point LED must light up. Connector terminal Measure to 3 Vehicle body ground (GND) point Switch ignition on. LED must light up. If LED does not light up: Check wiring for open circuit and repair if needed. If LED lights up: Check activation Check for open circuit and short to positive or ground (GND) in following wiring connections: |
Re: B6 Help Needed!
The brake switch is definitely the culprit. It's a cheap fix to swap it out. It's just a little microswitch located at the top of the brake pedal.
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